Collapsible bottle



FIG. 1 is a perspective view of a collapsible bottle showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof, the opposite side is the same;

FIG. 5 is a bottom view thereof; and

FIG. 6 is a perspective view of the collapsible bottle shown in an alternate condition with the front and rear walls collapsed into the bottle. 

The ornamental design for a collapsible bottle, as shown and described. 